linux-kernel - Re: [PATCH] x86: traps.c declare functions before they get used

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Date:	Tue, 16 Dec 2008 21:19:56 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Jaswinder Singh <jaswinder@...radead.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH] x86: traps.c declare functions before they get used


* Jaswinder Singh <jaswinder@...radead.org> wrote:

> Signed-off-by: Jaswinder Singh <jaswinder@...radead.org>
> 
> In asm/traps.h :-
> do_double_fault : added under X86_64
> sync_regs : added under X86_64
> math_error : moved out from X86_32 as it is common for both 32 and 64 bit
> smp_thermal_interrupt : added under X86_64
> mce_threshold_interrupt : added under X86_64
> math_emulate : moved from X86_32 to MATH_EMULATION
> ---
>  arch/x86/include/asm/traps.h |   11 ++++++++++-
>  1 files changed, 10 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
> index 45dee28..d8a201b 100644
> --- a/arch/x86/include/asm/traps.h
> +++ b/arch/x86/include/asm/traps.h
> @@ -46,6 +46,10 @@ dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
>  dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
>  dotraplinkage void do_segment_not_present(struct pt_regs *, long);
>  dotraplinkage void do_stack_segment(struct pt_regs *, long);
> +#ifdef CONFIG_X86_64
> +dotraplinkage void do_double_fault(struct pt_regs *, long);
> +asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *);
> +#endif
>  dotraplinkage void do_general_protection(struct pt_regs *, long);
>  dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
>  dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
> @@ -72,9 +76,14 @@ static inline int get_si_code(unsigned long condition)
>  extern int panic_on_unrecovered_nmi;
>  extern int kstack_depth_to_print;
>  
> -#ifdef CONFIG_X86_32
>  void math_error(void __user *);
> +#ifdef CONFIG_X86_32
>  unsigned long patch_espfix_desc(unsigned long, unsigned long);
> +#else
> +asmlinkage void smp_thermal_interrupt(void);
> +asmlinkage void mce_threshold_interrupt(void);
> +#endif
> +#ifndef CONFIG_MATH_EMULATION
>  asmlinkage void math_emulate(long);
>  #endif

uhm, shouldnt that #ifndef CONFIG_MATH_EMULATION be #ifdef 
CONFIG_MATH_EMULATION?

	Ingo
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